Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/common], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:08 PM org.apache.catalina.startup.ClassLoaderFactory validateFile WARNING: Problem with directory [/usr/share/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false] Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server version: Apache Tomcat/8.0.14 (Debian) Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server built: Sep 29 2014 11:26:22 Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server number: 8.0.14.0 Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Name: Linux Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Version: 3.16.0-4-amd64 Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Architecture: amd64 Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Version: 1.7.0_79-b14 Oct 07, 2015 3:06:12 PM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Vendor: Oracle Corporation Oct 07, 2015 3:06:15 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-nio-8080"] Oct 07, 2015 3:06:15 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector INFO: Using a shared selector for servlet write/read Oct 07, 2015 3:06:15 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 4910 ms Oct 07, 2015 3:06:15 PM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina Oct 07, 2015 3:06:15 PM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/8.0.14 (Debian) Oct 07, 2015 3:06:15 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor /etc/tomcat8/Catalina/localhost/xwiki.xml Oct 07, 2015 3:06:15 PM org.apache.catalina.startup.SetContextPropertiesRule begin WARNING: [SetContextPropertiesRule]{Context} Setting property 'allowLinking' to 'true' did not find a matching property. 2015-10-07 15:07:52,995 [localhost-startStop-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Starting embedded Solr server... 2015-10-07 15:07:53,012 [localhost-startStop-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Using Solr home directory: [/var/lib/xwiki/data/solr] 2015-10-07 15:08:01,292 [localhost-startStop-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Started embedded Solr server. Oct 07, 2015 3:08:04 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deployment of configuration descriptor /etc/tomcat8/Catalina/localhost/xwiki.xml has finished in 109,350 ms Oct 07, 2015 3:08:04 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /var/lib/tomcat8/webapps/ROOT Oct 07, 2015 3:08:05 PM org.apache.jasper.servlet.TldScanner scanJars INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. Oct 07, 2015 3:08:05 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deployment of web application directory /var/lib/tomcat8/webapps/ROOT has finished in 488 ms Oct 07, 2015 3:08:05 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-nio-8080"] Oct 07, 2015 3:08:05 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 109975 ms 2015-10-07 15:08:58,373 [XWiki initialization] INFO .HibernateDataMigrationManager - Storage schema updates and data migrations are enabled 2015-10-07 15:08:59,371 [XWiki initialization] INFO .HibernateDataMigrationManager - No data migration to apply for wiki [xwiki] currently in version [72001] 2015-10-07 15:08:59,372 [XWiki initialization] INFO .HibernateDataMigrationManager - Checking Hibernate mapping and updating schema if needed for wiki [xwiki] 2015-10-07 15:09:12,441 [XWiki Solr index job thread] INFO o.x.s.s.i.j.IndexerJob - Starting job of type [solr.indexer] with identifier [[solr, indexer]] 2015-10-07 15:09:15,237 [XWiki Solr index job thread] INFO o.x.s.s.i.j.IndexerJob - 292 documents added, 27 deleted and 0 updated during the synchronization of the Solr index. 2015-10-07 15:09:15,238 [XWiki Solr index job thread] INFO o.x.s.s.i.j.IndexerJob - Finished job of type [solr.indexer] with identifier [[solr, indexer]] 2015-10-07 15:19:43,690 [http://192.168.89.163:8080/xwiki/bin/download/Test+Oberseite/Oberseite+unterseite/WebHome/test.docx] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted 2015-10-07 15:24:11,525 [http://192.168.89.163:8080/xwiki/bin/download/Test+Dashboard/Test+Page/WebHome/test.docx] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted 2015-10-07 15:24:21,664 [http://192.168.89.163:8080/xwiki/bin/download/Test+Dashboard/Test+Page/WebHome/test.docx] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted 2015-10-07 15:25:39,642 [http://192.168.89.163:8080/xwiki/bin/download/Test+Dashboard/Test+Page/WebHome/test.odt] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted 2015-10-07 15:25:49,044 [http://192.168.89.163:8080/xwiki/bin/download/Test+Dashboard/Test+Page/WebHome/test.odt] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted 2015-10-07 15:26:02,380 [http://192.168.89.163:8080/xwiki/bin/download/Test+Dashboard/Test+Page/WebHome/test.docx] WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:444) [XWikiAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:184) [XWikiAction.class:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) [RequestProcessor.class:1.3.10] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) [RequestProcessor.class:1.3.10] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) [ActionServlet.class:1.3.10] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) [ActionServlet.class:1.3.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) [tomcat8-servlet-api-8.0.14.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat8-servlet-api-8.0.14.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) [ActionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) [ConversionFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat8-websocket-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [SetHTTPHeaderFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [XWikiDavFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [SavedRequestRestorerFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [SetCharacterEncodingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) [RoutingFilter.class:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537) [tomcat8-catalina-8.0.14.jar:8.0.14] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566) [tomcat8-coyote-8.0.14.jar:8.0.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523) [tomcat8-coyote-8.0.14.jar:8.0.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat8-util-8.0.14.jar:8.0.14] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] Caused by: java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:185) ~[EntityReference.class:na] at org.xwiki.model.reference.EntityReference.(EntityReference.java:153) ~[EntityReference.class:na] at org.xwiki.model.reference.AttachmentReference.(AttachmentReference.java:68) ~[AttachmentReference.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getReference(XWikiAttachment.java:156) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.extractMimeType(XWikiAttachment.java:980) ~[XWikiAttachment.class:na] at com.xpn.xwiki.doc.XWikiAttachment.getMimeType(XWikiAttachment.java:923) ~[XWikiAttachment.class:na] at com.xpn.xwiki.web.DownloadAction.setCommonHeaders(DownloadAction.java:427) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.sendContent(DownloadAction.java:291) ~[DownloadAction.class:na] at com.xpn.xwiki.web.DownloadAction.render(DownloadAction.java:174) ~[DownloadAction.class:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:417) [XWikiAction.class:na] ... 50 common frames omitted